simonmar 2003/02/10 09:12:44 PST
Modified files: (Branch: simonm-hackery-branch)
happy/alex/src AbsSyn.hs Alex.hs CharSet.hs DFA.hs
Main.hs Makefile NFA.hs
Added files: (Branch: simonm-hackery-branch)
happy/alex/src Info.hs Util.hs
Log:
Commit another bootstrapping fixed-point.
The main change here is the way start-codes are handled: rather than
having each Accept record list the startcodes to which it applies,
we now map each start code onto its own start-state in the DFA. This
is much simpler in the back-end: we don't have to check start-codes
before accepting a symbol, and it lets us remove a field from the
Accept record.
I pretty much rewrote NFA.hs too, using a monad to create the NFA
(idea pinched from Thomas Hallgren's LHiH code).
Revision Changes Path
1.1.2.2 +2 -2 fptools/happy/alex/src/Attic/AbsSyn.hs
1.1.1.1.2.2 +10 -13 fptools/happy/alex/src/Alex.hs
1.1.2.2 +1 -1 fptools/happy/alex/src/Attic/CharSet.hs
1.1.1.1.2.2 +28 -23 fptools/happy/alex/src/DFA.hs
1.1.1.1.2.2 +115 -61 fptools/happy/alex/src/Main.hs
1.2.2.2 +1 -1 fptools/happy/alex/src/Makefile
1.1.1.1.2.2 +146 -143 fptools/happy/alex/src/NFA.hs
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